Belt-shifting device



(No Mbdel.)

E. R. HYDE.

BELT SHIFTING DEVIGE.

'No. 375,752. Patented Jan. 3,1888.

N. FEYERS. Ptmloljthagrip'wr. Washinlhm. D. C.

UNITED STATES PATENT OFFICE.

ELXVlN R. HYDE, OF SPRINGFIELD, MASSACHUSETTS.

BELT-SHIFTING DEVICE.

SPECIFICATION {arming part of Letters Patent No. 375,752, dated January3, 1888.

(No model.)

To all whom it may concern:

Be it known that I, ELWIN R. HYDE, a citi zen of the United States,residing at- Springfield, in the county of Hampden and State ofMassachusetts, have invented new and useful Improvements inBelt-Shipping Devices, of which the following is a specification.

This invention relates to improvements in belt-shipping devices foriron-planers; and the invention consists in the peculiar constructionand arrangement of parts, as hereinafter fully described, and pointedout in the claim.

In the drawings forming part of this specification, Figure l is a planView illustrating belt-shippin g devices constructed according to myinvention, and there shown in connection with a portion of the body of aplaner, the top of the latter being removed and that part thereof belowthe top being shown in section; Fig. 2 is a side elevation at one end ofa planer having myimprovements applied thereto, the top thereof beingbroken away. Figs. 3 and 4 illustrate detail parts, which arehereinafter fully described.

In the drawings, 2 indicates a part of the body of a planer at one endthereof, on which the planer-bed 3 (a portion of which is shown in Fig.2) has a reciprocating motion by the ordinary connection with thedriving-shaft 4, which, in practice, extends under said bed 3; but suchconnection is not shown in the drawings. One pulley, 7, is fixed on thedrivingshaft 4, and on each side of said pulley 7 is placed a loosepulley, 5 and 6. Two belts, 8 and 9, as usual, are run on said pulleys,one open and one crossed, to rotate shaft 4 in opposite directions or togive it a reciprocating rotary motion.

The planer is started in the usual way by a countershaft, on which thebelts S and 9 run, which is located over the planer, but not shown inthe drawings, and when so started one of the belts 8 or 9 is on thefixed pulley 7, according to the direction in which the bed 3 is to bemoved, and the other belt runs on one of said loose pulleys. To quicklyship either of said belts from the loose pulleys onto the tight pulley7, to set the planer-bed in motion and to ship either of said belts fromthe tight pulley to a loose one, thereby bringing the other belt ontothe tight pulley to reverse the motion of the planer-bed, .the belowdescribed shipping devices are provided.

Heretofore it has been difficult, with the shipping devices generally inuse on planers, to obviate a considerable drag or friction be tween thetwo belts 8 and9, as they are shipped simultaneously onto and oil fromthe tight pulley 7, for the reason that the shipping devices for bothbelts have had a coinciding movement, and hence before one belt wasmoved entirely oft the tight pulley the other belt, running in theopposite direction,would be shipped more or less onto said pulley. Toremedy the above-named inconveniences, and to give each of the belts 8and 9 an independent shipping movement whereby one is shipped nearly orquite off from the tight pulley before the other is brought onto thelatter, the below-described improved belt-shipping devices are provided.Two shipper-rods, 10 and 11, extend from over the pulleys 5, 6, and 7,through the side of the machine, and their rear ends are supported inthe bearing-block 12. On each of said rods is secured a shipperarm, 13,a portion of one thereof detached from the machine, being shown in sideelevation in Fig. 4, each of said shipper-arms having a belt-ring on theend thereof through which the belt passes, and having a circular hole init through which the end of one of the shipper-rods passes freely, asshown in Fig. 1, to provide for bolting said arms to said rods in thepositions shown over the pulleys.

On each of the shipper-rods 10 and 11 is fixed a short arm, 14, (shownin end elevation in Fig. 3,) on which is-a stud having thereon afriction-roller, 15. A plate, 16, having a cam-slot, 17, therein, inwhich the two arms ll on rods 10 and 11 engage, is supported an der thelatterin the position shown in Fig.1 by two guide-rods, l8 and 19, whichhave hearings in the body of the machine. Said rod 19 extends alongopposite the outer side of the planer, (see Fig. 2,) and has two nutsthereon between which asliding shipper-block, 20, moves, sliding on arib, 21, on the side of the planer, and having an upwardly-projectingstud thereon, with which the usual adjustable blocks, 22, on the edge ofthe planerbed, engage as the latter slides to and fro.

By the movement of the planer-bed 3 in the direction of the arrow inFig. 1 the cam-plate 16 is moved in like direction, causing the slot 17to engage with the arms 11 on the rods 10 and 11, and slide the latterendwise. The plate 16 and the shipper-rods 10 and 11, together with thearms 13, are shown in the positions which they occupy when the belts arerunning on pulleys 6 and 7. The next movement of the bed 3 will carryone of the blocks 22 against said stud on the shipper-block 20, andslide the latter in the direction indicated by the arrow, causing saidshipper-block to move against one of the nuts on the rod 19 and draw thecam-plate 16 in the same direction. It is seen that the stud 15 on thearm 14 on the shipper-rod 11 is in engagement with the inclined portionof the cam-slot l7, and therefore said shipper-rod 11 and its shipperarm13 will be the first to move in the direc tion of the arrow (shown byits side) and carry the belt from pulley 7 onto pulley 5, and then thestud 15 on arm 14 on the shipper-Tod 10 becomes engaged in said inclinedpart of said cam-slot, and thelatter-named shipper-rod and itsshipper-arm 13 then follow the movement of rod 11 and shipthe belt frompulley 6 onto pulley 13, thus reversing the rotary movement of thelatter and consequently that of the planer-bed 3.

In the abovedescribed operation of the shipping devices it is seen thatwhile the inclined portion of the canrslot 17 is acting to slide oneshippenrod the slot-engaging stud on the other rod is in one of the twoends of said slot, both of which, at each end of said inclined portionof the slot, are in a line with the movement of the cam-plate, and henceone shipper-rod rests while the other is moving, and consequently onebelt is shipped before the other one moves, and the above-referredtodrag or friction of the belts on the fixed pulley 7 is prevented.

What I claim as my invention is- The plate 16, having the cam-slot 17therein, and having guide rods attached to the ends thereof, whereby itis supported in the body 2 of the machine, combined with the planer-bed3, having a longitudinal reciprocating movement on said body 2, and anengagement with one of said guide-rods, whereby the plate 16 is given alongitudinal reciprocating motion, and two shipper-rods having a directengagement with the cam-slot in said plate, whereby they are given anendwise-reciprocating motion at right angles to the movement of theplate 16, substantially as set forth.

ELWIN R. HYDE.

Witnesses:

H. A. GHAPIN, G. M. CHAMBERLAIN.

